William l



(No Model W. L. BLYTHE. PICK;

Patented May 23, 1882.

UNITED STATES PATENT OFFICE.

WILLIAM L. BLYTHE, OF MOKELUMNE HILL, CALIFORNIA.

PICK.

SPECIFICATION forming part of Letters Patent No. 258,276, dated May 23,1882.

Application filed February 18, 1882. (No model.)

To all whom it may concern Be it known that I, WILLIAM L. BLYTHE, ofMokelumne Hill, county of Oalaveras, State of California, have inventedan Improved Pick; and I hereby declare the following to be a full,.clear, and exact description thereof.

My invention relates to that class of picks in which the blade and stockare made separate; and it consists in a novel means of securing theblade to the stock or handle, whereby it may be easily secured orremoved when necessary.

Referring to the accompanying d rawin gs, Figure l is a view of my pick.Fig. 2 shows the different parts separated.

Let A represent a handle, having bolted to its end a metalstrip, B,forming an eye or socket, as shown.

Let 0 represent the blade, having a point at each end and curvedappropriately. On its outer or concave surface, about the middle, is

a notch, or, in which the strip B fits when the blade is inserted in theeye formed by said strip. This causes the strip B to lie flush with Ithe blade, as well as to afford security, as hereinafter shown. Upon theconcave surface of the blade is cut a slight notch, b.

D represents a key, wedge-shaped, of a length to fit Within the notch b.Upon the sides of the key'D, at its smaller end, are lugs or projectionsc. This key is fitted into the eye formed by strip B, and lies withinthe notch b of the blade, its side lugs, c, fitting against the edges ofthe strip.

In one edge of the key D is formed a recess, in which a spring, 0, issecured by one end. Its other end is provided with a large head, 0',that may catch-behind the edge of the strip B.

The spring may be pressed down within its recess, and its head will lieflush with the key and present no obstruction to the key in passin 3through the eye. When this key is pushed through the eye of strip B, andit reaches its limit by reason of the lugs c, the head c of the spring 0will spring out to fit against the edge of said strip, thus preventingthe key from moving from side to side.

E represents another key, wedge-shaped, which is inserted within the eyebetween key D and the handle.

The eye formed by the strip B is just large enough to receive the bladeand the two keys. The keys D E have their inclinations in reversedirections, so that they Wedge each other.

The notches a b in the blade render it firm against the strip B and keyD. When struck on one point the blade cannot be forced out, because thelugs or projections c on key D press against the edge of strip B andwill not allow the key to move. When struck upon the other point theblade cannot move, both because of the head 0 of spring e in key D andbecause said key is wedged against key E, which is itself wedged firmlyin the eye.

In order to remove the blade the key E is first loosened by knocking,and is taken out. The spring 6 is then pressed down, and keyD may betaken out, when the blade may also be removed.

Having'thus described myinvention, what I claim as new, and desire tosecure by Letters Patent, is- V In a pick, the strip B, secured to thehandle and forming a socket or eye, in combination with the blade 0,having notches a 12, wedge D, with its lugs c, and spring 0, having ahead, 0, and the wedge E, all arranged to secure the blade within theeye, substantially as described.

In witness whereof I hereunto set my hand.

W. L. BLYTHE.

Witnesses:

WM. WELLS, F. W. PEEK.

